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efficient protection of mild steel corrosion in hydrochloric acid using 3-(5-amino-1,3,4-thiadiazole-2yl)-2h-chromen-2-one, a coumarin derivative bearing a 1,3,4-thiadiazole moiety: gravimetrical techniques, computational and thermodynamic investigations
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نویسنده
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al-azzawi w. khalid ,hussein s. s. ,salih s. m. ,zinad d. s. ,al-azzawi r. k. ,hanoon m. m. ,al-amiery a.a ,al-amiery a.a ,fayad m. a. ,kadhum a. a. h. ,wan isahak w. n. r. ,takriff m. s.
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منبع
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progress in color, colorants and coatings - 2023 - دوره : 16 - شماره : 1 - صفحه:97 -111
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چکیده
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In this study, a novel organic molecule, 3-(5-amino-1,3,4-thiadiazole-2yl)-i 2h-chromen-2-one (3-atc), has been investigated for its efficiency in the mild steel corrosion inhibition in 1 m hydrochloric acid solution at various temperatures (303, 313, 323 and 333 k) by gravimetrical analysis. the experimental data showed that 3-atc is an excellent inhibitor for the corrosion of mild steel in a 1.0 m hcl environment, and the protection performance of 3-atc is higher than 96 % at 0.0005 m 3-atc. during adsorption, it was noticed that the 3-atc exhibits strong inhibitory efficiency, and this phenomenon was discovered to follow the langmuir adsorption isotherm. furthermore, the thermodynamic parameters were calculated according to the weight losswas indicated that chemisorption and physisorption mechanisms are responsib for the adsorption of 3-atc molecules on mild steel surfaces. in addition, the quantum chemical dft research was used to study the relationship between the results of inhibitory efficiency and molecule structure.
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کلیدواژه
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synthesis. corrosion inhibitor ,coumarin ,thiadiazole ,dft
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آدرس
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al-farahidi university, department of medical instruments engineering techniques, iraq, university of technology-iraq, materials engineering department, iraq, university of technology-iraq, materials engineering department, iraq, university of technology-iraq, materials engineering department, iraq, al-farahidi university(afu), department of medical instruments engineering techniques, iraq, university of technology-iraq, materials engineering department, iraq, university of technology-iraq, materials engineering department, iraq. universiti kebangsaan malaysia, faculty of engineering and built environment, department of chemical and process engineering, malaysia, university of technology-iraq, materials engineering department, iraq. universiti kebangsaan malaysia, faculty of engineering and built environment, department of chemical and process engineering, malaysia, university of technology-iraq, materials engineering department, iraq, university of al-ameed, iraq, universiti kebangsaan malaysia, faculty of engineering and built environment, department of chemical and process engineering, malaysia, university of sharjah, collage of engineering, chemical and water desalination engineering program, department of mechanical & nuclear engineering, united arab emirates
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Authors
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